Re: Whats this guy up to?

[Admin]

capacitors across motor terminalsactuall take electricity away from the motor (for a fraction of a second whenthat small)and store it to be used the next fraction of a second so the motor dosn’t take all the current at once.They call them startup capacitors. This way it evens the current flow out a little. Motors take double the current when starting thenwhile running which. And if a motor is held at a stop with electricy running throug it it will melt the windings. So the cap dosn’t allow it to do that on startup since the shaft is stoped for that short while. I tried a 100mf cap across my motor terminals of my 3.0 and it didn’t seem to make a difference so I thought exactly like b_drift and the car audio power Cap. Hooking it across the motor it won’t charge like a car one will. You’ll see the car ones are hooked right in parrellel with amps and are hooked up directly to battery at all times. The cap across the motor won’t do that since the motor is given power only when throttle is give. So I connected the top corner terminal on the PC Board abovewhere the motor wires go it. That’s also where the pos wire from the battery goes. Then I soldered the other wire to the emitter side of the transistor for the forward direction (third transistor down I think).I found the right transistor byjumping the transistor makes the wheels spin.Now the capacitor will charge at all times and dischargeto thetransistor when forward is pushed.This mod would help if themotor took more current then thecircutry could deliver on its own. (Just like the car where the amps take the current faster then it can get it from the batteryall the way back to the amp) But it didn’t make any difference. I have a feeling since the motor is so smallthat the circutry can deliver power just as fast as the motor can take it. You can’t make a motor take more current then it wants. You could hook up a hugebattery to the motor that was the same voltage and it wouldn’t spinn any faster and wouldn’t take any more current. A higher voltage would make it faster but then fry the motor.

Then I thought I’d hook the cap up to the terminals on the board where there’s already a cap thinking I’d add a little more capacity to that. But, again no difference.

Boy oh boy, I could ramble on about this stuff all day. I must be boring to listen to! Capacitor discharge, magnetic fields, motor current ratings … blahh blahh blahh. I sure hope someone is interested.

Anyway, I think I’ve hooked it up every which way I could think of and no change in performance.

Please tell me if any of you see different results.

-Peter